"Did those cultures have writing?" Well, it seems that they were just working on that: https://en.wikipedia.org/wiki/T%C4%83rt%C4%83ria_tablets https://en.wiki

"Did those cultures have writing?" Well, it seems that they were just working on that: https://en.wikipedia.org/wiki/T%C4%83rt%C4%83ria_tablets https://en.wikipedia.org/wiki/T%C4%83rt%C4%83ria_tablets